Only small remains of the castle of Wiprecht of Groitzsch on Burgberg ('Castle Hill') are still visible, but the site has been investigated archeologically and is protected as a historical monument.
The Wiprechtsburg is situated on the northwestern edge of the town of Groitzsch and was one of the largest castle complexes in Saxony around 1100 under Count Wiprecht von Groitzsch. A special feature is the oldest stone building in Saxony, the round chapel built by Wiprecht for his wife (daughter of the Bohemian duke Vratislaw II) based on the Bohemian model.
During the summer months the area is used as an open-air stage for concerts and other events.
From Groitzsch, Wiprecht II fought many of his battles for the right to rule and land and continued to build up his power. The once mighty castle was destroyed in 1306. Only parts of the Romanesque round chapel and a residential tower built around 1080 have survived.
Extensive excavations by archaeologists from 1954 to 1968 uncovered the remains of the residential tower and the round chapel and brought to light valuable findings on the history of the castle.With the completion of the excavations, the design of the entire castle area began. An open-air stage was built in the ruins, a vineyard with more than 500 vines, flower beds and hiking trails along the castle mountain and along the banks of the Schwennigke river. Today, 48 exhibits from the immediate vicinity are on display in one of the stone lapidarium corridors. In the summer months, numerous events take place at Wiprechtsburg Castle, the broadcasting of which reaches beyond national borders, e. g. the summer solstice celebration, open-air concerts, and the annual castle festival, to name but a few.
References:Celje Castle was once the largest fortification on Slovenian territory. The first fortified building on the site (a Romanesque palace) was built in the first half of the 13th century by the Counts of Heunburg from Carinthia on the stony outcrop on the western side of the ridge where the castle stands. It had five sides, or four plus the southern side, which was a natural defence. The first written records of the castle date back to between 1125 and 1137; it was probably built by Count Gunter. In the western section of the castle, there was a building with several floors. Remains of the walls of this palatium have survived. In the eastern section, there was an enclosed courtyard with large water reservoirs. The eastern wall, which protects the castle from its most exposed side, was around three metres thicker than the rest of the curtain wall. The wall was topped with a parapet and protected walkway.